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Shishkovsky Igor Vladimirovich
Doctor of Sciences, Professor of Samara State Technical University.
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Prof. Shishkovsk(ii)y works as a senior researcher of Laboratory of Technological Lasers at the P. N. Lebedev Physics Institute (Samara branch) from 1982 and has managed a research group.
For past years Shishkovsky I.V. are built the basis of fabrication of functional graded meso and micro structures and 3D tools with unique physical-mechanical and physic-chemical properties. There are proposed the results of explorations of physical and physic-chemical regularities, common for processes of Selective Laser Sintering (SLS ) powder (including exothermal) compositions.
The main results of researches have been received both methods of mathematical simulation, and experimental studies. Firstly at Russia (1998 ), Shishkovsky I.V. has been designed and built the experimental setup for SLS process, which equipped by a soft- and hard- ware complex management of processes, graphic representation of dates on geometry of a 3D parts, the most layer -by layer SLS and its interactive diagnostic.
Shishkovsky I.V. for the first time built a self-consistent continuum physical model of interaction of a laser radiation with powder compositions, fit as for a case of a laser liquid-phase sintering, as for laser controlled overlapping of SLS ands self-propagating high-temperature synthesis (SHS ) processes in reactionary capable powder mixtures during laser synthesis of 3D parts. Numerical model take into account the analysis of absorption and scattering processes in powder medium, definition of thermal properties of used compositions, their rheological behavior and a theoretical thermal model of SLS process.
The theoretical model of 3D direct metal deposition (DMD) /volume laser cladding/ for fine-structure powder compositions was built, that permitting to define trajectories and traveling speeds of microparticles at the collateral outflow of gas with particles from a nozzle in a gravity field in dependence on an angle of delivering together with a solution of the equations of their heating and melting in a this field.
It were designed and approved the techniques for determination of optical and thermo-physical properties of powder compositions, approach for study of porous structure base on fractal approach; methodical recommendations by the searching of optimum regimes for layer by layer SLS; structurally - responsive technique of a specific resistance measurement and exploration of a shape memory effect (SME) in porous samples.
For the first time it were offered, approved in series of applications and are licensed new metal - polymer and bimetallic powder compositions (MPC and BPC) for SLS technology. Synergetic approach of several physical processes (laser treatment and a liquid-phase sintering - in case MPC; laser sintering and soldering - in case BPC) in aggregate with carrying out of an adding infiltration and annealing sintered articles (a post - process treatment) were proposed. The new degrees of freedom by management of the parameters of 3D parts with such interrelation of their physical-mechanical and physic-chemical properties which have been inaccessible earlier have allowed implementing.
For the first time it was offered and in a uniform process experimental realized, the laser controlled overlapping of SLS and SHS processes in the next powder compositions: mixtures of metals for synthesis of intermetallic in the Ni - Ti, Ni - Al, Ti - Al systems; mixtures of oxides of metals for synthesis of ceramics TiO2 - ZrO2 - PbO, Al(Al2O3) - Zr (ZrO2); mixtures for synthesis of the barium hexaferrite and lithium ferrites - spinels from BaO2 - Fe2O3 - Cr2O3 - Fe, Li2CO3 - Fe2O3 - Cr2O3 - Fe.
For the first time, it was experimentally shows and licensed the possibility of synthesis of porous 3D parts and tools from functional graded materials and meso porous structures via SLS method. Such approach was realized as via level-by-level of concentration changing as modeling of porous structure the future 3D objects.
The current studies at prof. Shishkovsky group are directing on the searching of new perspective powdered material and compositions (including meso-, nano size and/or reaction-capable) for using in technologies of laser syntheses of 3D parts and MEMS micro-electro-mechanical (Nano-EMS) devises.
Directions of my current researches:
3D intermetallic synthesis biocompatible implants from exothermal SHS of powder compositions,
determination of the optimum SLS conditions and analysis of a phase structure.
computer simulation and synthesis by a SLS method:
Reader can find the description of our researches, equipment, some links and publications on the server of SB of LPI on the my page.
Awards and grants:
- The Russian Foundation of Basis Researches (RFBR) has awarded support from 2010 until 2012 to our project N 10-08-00208-a) - Numerical simulation and laser prototyping of micro- and nano- electro- mechanical systems. Project chief - Shishkovsky I.V. (SB LPI);
- The Russian Foundation of Basis Researches (RFBR) has awarded support from 2009 until 2011 to our project (N 09-08-00149-a). Synthesis of nanooxides by cruicible-free aerosol method and creation of nanostructured compositions for functional purposes. Project chief - Morozov Yr.G. (ISTMAN);
- Grant of Presidium of Russian Academy of Sciences in framework program "Fundamental sciences for medicine" by the theme "Laser synthesis of 3D porous matrix from nitinol as repository of stem cells". Stage 2009-2010. Project manager - Shishkovsky I.V. (SB LPI);
- The Russian Foundation of Basis Researches (RFBR) has awarded support 2008 (N 08-08-07015) for publication of monograph "Laser synthesis of functional meso structures and 3D tools". Project chief - Shishkovsky I.V. (SB LPI);
- Second diploma in competition on the best research P.N. Lebedev Physics Institute of RAS for 2007 by the cycle of studies «Laser synthesis of 3D parts. Perspectives and applications»;
- The Russian Foundation of Basis Researches (RFBR) has awarded support from 2007 until 2008 to our project N 07-08-12048-ofi) - « Layer–by-layer laser control synthesis of porous implants and tissue-cellular scaffolds from titanium base powder compositions». Project chief - Shishkovsky I.V. (SB LPI);
- The Russian Foundation of Basis Researches (RFBR) has awarded support from 2006 until 2007 to our project (N 06-08-00102-a) – « Numerical simulation and laser synthesis of gradient filter elements and membranes» Project chief - Shishkovsky I.V. (SamGTU);
- The Russian Foundation of Basis Researches (RFBR) has awarded support from 2006 until 2008 to our project (N 06-03-32119-a) – « Creation of scientific principles and new chemico-technological methods of complex oxides materials and articles production» Project chief - Kuznetsov M.V. (ISTMAN);
- Grant of Presidium of Russian Academy of Sciences in framework program "Fundamental sciences for medicine" by the theme "Laser controlled synthesis of functional implants". Stage 2005 2006. Project managers Petrov A. L. – Shishkovsky I.V. (SB LPI);
- The first winning prize for the seventh All-Russian competition /2003/ in Methodical Elaboration of Educational Site Exponenta.Ru;
- The Russian Foundation of Basis Researches (RFBR) has awarded support from 2004 until 2006 to our project (N 04-03-96500 Povoljie) "Condition study of the ignition and running of an exothermal reaction of combustion in powdered mixtures precisely controlled at the laser beam." Project chief - Shishkovsky I.V. (SB LPI);
- The Russian Foundation of Basis Researches (RFBR) has awarded support from 2004 until 2006 to our project (N 04-03-97204 Naukograd) "Creation of scientific principles and new chemical-technological methods of Piezo-, Ferroelectric, pigment and refractory oxides synthesis" Project chief - Kuznetsov M.V. (ISTMAN);
- The winners of 6th (1999) competition of Scientific Projects Between Young Researchers of RAS by Fundamental and Applied Investigations (ORDER of RAS from April 24, 2001 N 123). Grant name was - "NiTi Implant synthesis by the Selective Laser Sintering method". Project chief - Shishkovsky I.V. (SB LPI);
- Grant from the Samara State Administration (2001) within the framework of the Regional Program for support of science and technique (grant N 01-10-G2000). Project chief - Petrov A.L. Shishkovsky I.V. (SB LPI);
- Our investigational topic "Research on the physical and mechanical properties of a NiTi implant synthesized by level-by-level Selective Laser Sintering" was supported within the program- "Scientific Research of Higher Education in Manufacturing Technologies" -1999, under the Laser Technologies Section. Project chiefs - Pokoev A.V. – Shishkovsky I.V. (SamGU).
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